As aerospace systems grow more complex, neutron imaging is gaining traction as a cutting-edge nondestructive testing (NDT) method capable of identifying internal defects in aircraft components with high precision.
Unlike traditional X-ray radiography, which interacts with electrons, neutron imaging penetrates materials by interacting with atomic nuclei—offering unique visibility into composite and dense structures. This makes it particularly valuable for inspecting turbine blades, fuel cells, and intricate aerospace assemblies where early fault detection is critical.
Historically limited by its dependence on nuclear reactors, neutron imaging is now becoming more accessible due to compact neutron generators and linear accelerators. Companies like Phoenix Neutron Imaging have already commercialized non-reactor-based N-ray services, compliant with ASTM and aerospace standards.
Despite rising interest, the aerospace industry faces a shortage of certified NDT professionals trained in neutron techniques. While most NDT inspectors are certified through the American Society for Nondestructive Testing (ASNT), formal certification in N-ray remains limited, with most training still employer-led.
As demand increases for more accurate, non-invasive inspection methods, experts say neutron imaging is poised to play a crucial role in aerospace safety, quality control, and MRO operations. With expanding access and growing use cases, the method is expected to become a standard feature in advanced aerospace inspection.
